Results for you have not bin cooking d food for... translation from English to Hindi

my mother has been cooking food for 2 hours.
मेरी माँ 2 घंटे से खाना पका रही है

you have been writing letters for 2 hours
वह सुबह से हंस रहा है

she will not have been eating food for 2 hours
वह 2 घंटे से खाना नहीं खा रही होगी

i shall have been eating food for 2 hour
मैं 2 घंटे से खाना खा रहा था